JP2020118188A - Coupling device - Google Patents

Coupling device Download PDF

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JP2020118188A
JP2020118188A JP2019007994A JP2019007994A JP2020118188A JP 2020118188 A JP2020118188 A JP 2020118188A JP 2019007994 A JP2019007994 A JP 2019007994A JP 2019007994 A JP2019007994 A JP 2019007994A JP 2020118188 A JP2020118188 A JP 2020118188A
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hole
state
connection
insertion hole
rotated
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JP7227771B2 (en
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和田 浩
Hiroshi Wada
浩 和田
祐治 鎌崎
Yuji Kamazaki
祐治 鎌崎
悟史 久保田
Satoshi Kubota
悟史 久保田
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JFE Metal Products and Engineering Inc
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JFE Metal Products and Engineering Inc
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells

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  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Connection Of Plates (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Abstract

To improve construction efficiency by reducing a burden of an operator.SOLUTION: A coupling device 1 coupling objects overlaid on each other comprises an insertion part 13 formed so that it can be freely inserted in a hole formed on each coupling object, and restraining parts 12 provided at an interval larger than thickness of the coupling object from the insertion part 13 in an insertion direction into a hole of the insertion part 13, and restraining insertion into the hole. The insertion part 13 is formed in a manner that insertion into the hole of the coupling object is restrained in a second state that it is rotated with an insertion direction as an axis from a first state that it is inserted in the holed of the coupling object, and insertion into the hole of the other coupling object is restrained under a third state that it can be freely inserted in the hole of the other coupling object in the second state and it is rotated with the insertion direction as an axis from the second state that it is inserted in the hole of the other coupling object.SELECTED DRAWING: Figure 3

Description

本発明は、重ねられた連結対象物を連結する連結装置に関する。 The present invention relates to a connecting device for connecting overlapping connection objects.

従来、台風や地震等により地上の構造物が倒れないようにするために、構造物の足下には強固な基礎が構築されている。基礎には、長さが数十メートルにもおよぶ杭を用いることがあり、杭を埋めるために相応の深さの立坑を掘削する。
基礎に用いられる杭を地中深くにまで埋める深礎工法においては、立坑の内壁が崩壊することを防止するために、立坑の内壁に沿って土留を構築する必要がある。土留は、例えば、土留材としてライナープレートを用い、立坑の内壁面に沿って、ライナープレートを立坑の周方向(横断面方向)及び高さ方向(深さ方向)に複数連結して構築する。
ライナープレートを連結する連結装置としては、ボルト及びナットが用いられる。ボルトをライナープレートのフランジに形成された挿通孔に挿通して、ボルトにナットを螺合させることで隣接するライナープレート同士を連結している(例えば、特許文献1参照)。
2. Description of the Related Art Conventionally, a strong foundation is built under the structure to prevent the structure on the ground from falling due to a typhoon or an earthquake. A pile with a length of several tens of meters may be used for the foundation, and a vertical shaft of a suitable depth is excavated to fill the pile.
In the deep foundation method of burying piles used for foundation deeply in the ground, it is necessary to construct soil retaining along the inner wall of the shaft to prevent the inner wall of the shaft from collapsing. The soil retaining is constructed by using a liner plate as the soil retaining material and connecting a plurality of liner plates along the inner wall surface of the shaft in the circumferential direction (transverse cross-sectional direction) and the height direction (depth direction) of the shaft.
A bolt and a nut are used as a connecting device for connecting the liner plates. The bolts are inserted into the through holes formed in the flanges of the liner plates, and the nuts are screwed into the bolts to connect the liner plates adjacent to each other (see, for example, Patent Document 1).

特開2009−257070号公報JP, 2009-257070, A

ところで、立坑の内壁面に土留を構築する場合、立坑の内壁面に設置する複数のライナープレートをボルト及びナットにより互いに連結する連結箇所は、数千箇所を超えることがある。連結箇所の全てにおいて、手作業によりボルトをフランジの挿通孔に挿通して、ボルトにナットを螺合させることは、作業者への負担が大きく、施工効率の向上が困難であった。 By the way, when constructing earth retaining on the inner wall surface of the shaft, the number of connecting points for connecting a plurality of liner plates installed on the inner wall surface of the shaft to each other with bolts and nuts may exceed several thousands. Manually inserting the bolt into the insertion hole of the flange and screwing the nut onto the bolt at all of the connection points imposes a heavy burden on the operator and makes it difficult to improve the construction efficiency.

そこで、本発明は、上記課題に鑑みてなされたものであり、作業者の負担を軽減し、施工効率を向上することができる連結装置を提供することを目的とする。 Then, this invention is made|formed in view of the said subject, and it aims at providing the coupling device which can reduce a worker's burden and can improve construction efficiency.

上記課題を解決するため、本発明は、重ねられた連結対象物を連結する連結装置であって、各連結対象物に形成された孔に挿通自在に形成された挿通部と、前記挿通部の前記孔への挿通方向に沿って、前記挿通部から連結対象物の厚さ以上の間隔をあけて設けられ、前記孔への挿通を規制する規制部と、を備え、前記挿通部は、前記一の連結対象物の孔に挿通された第1の状態から前記挿通方向を軸として回転させた第2の状態において前記一の連結対象物の孔への挿通が規制されるとともに、前記第2の状態で前記他の連結対象物の孔に挿通自在で、前記他の連結対象物の孔に挿通された前記第2の状態から前記挿通方向を軸として回転させた第3の状態において前記他の連結対象物の孔への挿通が規制されるように形成されていることを特徴とする。 In order to solve the above problems, the present invention is a connection device for connecting overlapping connection objects, wherein an insertion portion formed to be insertable into a hole formed in each connection object, and the insertion portion Along the insertion direction to the hole, provided with a gap equal to or more than the thickness of the object to be connected from the insertion portion, and a restriction portion for restricting the insertion into the hole, the insertion portion, The insertion of the one connection object into the hole is restricted in the second state in which the first connection object is inserted into the hole of the connection object in the second state of being rotated about the insertion direction as an axis, and the second In the third state in which it is freely inserted into the hole of the other connection target, and is rotated about the insertion direction from the second state of being inserted into the hole of the other connection target. It is formed so that the insertion of the object to be connected into the hole is restricted.

また、前記規制部に設けられ、前記挿通部を前記挿通方向に沿った軸線回りに回転させる操作部を備えることが好ましい。 In addition, it is preferable to include an operation unit that is provided in the regulation unit and that rotates the insertion unit around an axis line along the insertion direction.

また、前記一の連結対象物の孔と前記他の連結対象物の孔は、前記挿通部の挿通方向から見た際に、一部が前記挿通方向に重なっていることが好ましい。 Further, it is preferable that a part of the hole of the one connection object and the hole of the other connection object overlap with each other in the insertion direction when viewed from the insertion direction of the insertion portion.

また、前記一の連結対象物の孔と前記他の連結対象物の孔は同じ形状であり、一方の孔は他方の孔に対して、挿通される前記挿通部の前記挿通方向を軸として回転させた状態にあることが好ましい。 Further, the hole of the one connection object and the hole of the other connection object have the same shape, and one hole rotates with respect to the other hole about the insertion direction of the insertion part to be inserted as an axis. It is preferably in a state of being allowed to stand.

本発明によれば、作業者の負担を軽減し、施工効率を向上することができる。 According to the present invention, it is possible to reduce the burden on the operator and improve the construction efficiency.

周方向及び高さ方向に互いに連結されたライナープレートの斜視図である。FIG. 6 is a perspective view of liner plates connected to each other in a circumferential direction and a height direction. (a)は、高さ方向に互いに連結される長手フランジ部同士を離した状態で示す部分拡大図であり、(b)は、高さ方向に互いに重ねられた長手フランジ部を示す部分拡大図である。(A) is a partial enlarged view showing a state in which the longitudinal flange portions connected to each other in the height direction are separated from each other, and (b) is a partially enlarged view showing the longitudinal flange portions overlapped with each other in the height direction. Is. (a)は、連結装置を上側から見た斜視図であり、(b)は、連結装置を下側から見た斜視図である。(A) is a perspective view of the coupling device seen from above, and (b) is a perspective view of the coupling device seen from below. (a)は、連結装置の側面図であり、(b)は、連結装置の正面図である。(A) is a side view of a coupling device, (b) is a front view of a coupling device. (a)は、ライナープレートの挿通孔に連結装置を挿通させる前の状態を示す斜視図であり、(b)は、ライナープレートの挿通孔に連結装置の挿通部を挿通させた状態を示す斜視図であり、(c)は、ライナープレートの挿通孔に連結装置の挿通部を挿通させて連結装置を90度回転させた状態を示す斜視図である。(A) is a perspective view showing a state before inserting the connecting device into the insertion hole of the liner plate, and (b) is a perspective view showing a state in which the inserting portion of the connecting device is inserted into the insertion hole of the liner plate. FIG. 6C is a perspective view showing a state in which the insertion portion of the connection device is inserted into the insertion hole of the liner plate and the connection device is rotated 90 degrees. (a)は、ライナープレートの2つの挿通孔に連結装置の挿通部を挿通させる前の状態を示す斜視図であり、(b)は、ライナープレートの2つの挿通孔に連結装置の挿通部を挿通させた状態を示す斜視図であり、(c)は、ライナープレートの2つの挿通孔に連結装置の挿通部を挿通させて連結装置を90度回転させた状態を示す斜視図である。(A) is a perspective view showing a state before inserting the insertion part of the connecting device into the two insertion holes of the liner plate, and (b) shows the insertion part of the connecting device into the two insertion holes of the liner plate. It is a perspective view which shows the state which was made to penetrate, and (c) is a perspective view which shows the state which inserted the insertion part of a connection device into two insertion holes of a liner plate, and rotated the connection device 90 degrees. (a)は、ライナープレートの挿通孔に連結装置の挿通部を挿通させた状態を下側から示す斜視図であり、(b)は、ライナープレートの2つの挿通孔に連結装置の挿通部を挿通させた状態を下側から示す斜視図であり、(c)は、ライナープレートの2つの挿通孔に連結装置の挿通部を挿通させて連結装置を90度回転させた状態を下側から示す斜視図である。(A) is a perspective view showing a state in which the insertion part of the coupling device is inserted through the insertion hole of the liner plate from the lower side, and (b) shows the insertion part of the coupling device in the two insertion holes of the liner plate. It is a perspective view which shows the state which was made to penetrate, and (c) shows the state which inserted the insertion part of a connection device into two insertion holes of a liner plate, and rotated the connection device 90 degrees from the bottom. It is a perspective view. (a)は、挿通部に一つの傾斜面を形成した連結装置の側面図であり、(b)は、挿通部に二つの傾斜面を形成した連結装置の側面図である。(A) is a side view of the connecting device which formed one inclined surface in the insertion part, and (b) is a side view of the connecting device which formed two inclined surfaces in the insertion part.

本発明の好ましい実施の形態について、図面を参照しながら説明する。なお、以下に示す実施の形態は一つの例示であり、本発明の範囲において種々の形態をとりうる。 A preferred embodiment of the present invention will be described with reference to the drawings. It should be noted that the embodiment described below is merely an example, and various embodiments can be adopted within the scope of the present invention.

<ライナープレート>
図1は、周方向及び高さ方向に互いに連結されたライナープレート100の斜視図である。図2(a)は、高さ方向に互いに連結される長手フランジ部121a,121b同士を離した状態で示す部分拡大図であり、図2(b)は、高さ方向に互いに重ねられた長手フランジ部121a,121bを示す部分拡大図である。
ライナープレート100は、例えば、立坑の内壁面に沿って設けられる。ライナープレート100は、立坑の内壁面の崩落を防ぐ土留を構築する部材であり、例えば、鋼板等から形成されている。
図1に示すように、ライナープレート100は、立坑の内壁面に面するプレート面部110と、プレート面部110の縁部に立設されたフランジ部120と、を有する。
<Liner plate>
FIG. 1 is a perspective view of liner plates 100 connected to each other in a circumferential direction and a height direction. 2A is a partially enlarged view showing the longitudinal flange portions 121a and 121b connected to each other in the height direction in a state of being separated from each other, and FIG. 2B is a longitudinal view overlapped with each other in the height direction. It is a partial enlarged view showing flange parts 121a and 121b.
The liner plate 100 is provided along the inner wall surface of a vertical shaft, for example. The liner plate 100 is a member that constructs an earth retaining material that prevents the inner wall surface of the shaft from collapsing, and is made of, for example, a steel plate.
As shown in FIG. 1, the liner plate 100 has a plate surface portion 110 that faces the inner wall surface of the shaft, and a flange portion 120 that is provided upright on the edge portion of the plate surface portion 110.

プレート面部110は、その主面が立坑の内壁に面して配置されている。プレート面部110は、平面視矩形状に形成されており、例えば、鋼板をその短手方向に沿って波形状に湾曲させるとともに、その長手方向に沿って円弧状に湾曲させて形成されている。なお、プレート面部110は、波形状又は円弧形状に湾曲させて形成したものに限られず、平板状に形成されていてもよい。 The plate surface 110 is arranged such that its main surface faces the inner wall of the shaft. The plate surface portion 110 is formed in a rectangular shape in a plan view, and is formed by, for example, curving a steel plate in a wavy shape along its lateral direction and curving it in an arc shape along its longitudinal direction. Note that the plate surface portion 110 is not limited to being formed by curving in a wave shape or an arc shape, and may be formed in a flat plate shape.

フランジ部120は、プレート面部110の縁部に設けられており、長手フランジ部121と、短手フランジ部122と、を有する。長手フランジ部121(121a,121b)は、プレート面部110の長手側の2つの縁部に設けられており、プレート面部110に一体に形成されている。長手フランジ部121は、プレート面部110を成形する際に、長手側の縁部をその主面に直交するように折り曲げることで形成されている。長手フランジ部121は、立坑の内側に向かって延在している。なお、長手フランジ部121は、プレート面部110に一体に形成される場合に限られず、プレート面部110に溶接等によって接合されていてもよい。
長手フランジ部121aは、土留が構築される際に、ライナープレート100の下側となる縁部に設けられており、高さ方向にライナープレート100を重ねて土留を構築する際に、重ね合わせたライナープレート100の上側に配置される。
長手フランジ部121bは、土留が構築される際に、ライナープレート100の上側となる縁部に設けられており、高さ方向にライナープレート100を重ねて土留を構築する際に、重ね合わせたライナープレート100の下側に配置される。
The flange portion 120 is provided on the edge portion of the plate surface portion 110, and has a long flange portion 121 and a short flange portion 122. The longitudinal flange portions 121 (121a, 121b) are provided on the two longitudinal edges of the plate surface portion 110 and are formed integrally with the plate surface portion 110. The long-sided flange 121 is formed by bending the edge portion on the long side so as to be orthogonal to the main surface when the plate surface portion 110 is formed. The longitudinal flange portion 121 extends toward the inside of the vertical shaft. The longitudinal flange portion 121 is not limited to being integrally formed with the plate surface portion 110, and may be joined to the plate surface portion 110 by welding or the like.
The long-sided flange portion 121a is provided at the edge that is the lower side of the liner plate 100 when the soil retaining is constructed, and is overlapped when the liner plates 100 are stacked in the height direction to construct the soil retaining. It is arranged above the liner plate 100.
The long-sided flange portion 121b is provided on the edge that is the upper side of the liner plate 100 when soil retaining is constructed, and the liner plates that are overlapped when the liner plates 100 are stacked in the height direction to construct soil retaining. It is arranged below the plate 100.

図1及び図2に示すように、長手フランジ部121aには、その長手方向に沿って所定の間隔をあけて複数の孔(挿通孔)130aが形成されており、長手フランジ部121bには、その長手方向に沿って所定の間隔をあけて複数の孔(挿通孔)130bが形成されている。挿通孔130a,130bには、高さ方向に隣接するライナープレート100同士を互いに連結する連結装置1(詳細は後述する)が矢印P方向(以下、挿通方向Pという)から挿通される。各孔130a,130bは、それぞれ同じ大きさの長円状に形成されている。 As shown in FIGS. 1 and 2, a plurality of holes (insertion holes) 130a are formed in the longitudinal flange portion 121a at predetermined intervals along the longitudinal direction thereof, and the longitudinal flange portion 121b includes: A plurality of holes (insertion holes) 130b are formed at predetermined intervals along the longitudinal direction. A coupling device 1 (details of which will be described later) that couples the liner plates 100 adjacent to each other in the height direction to each other is inserted through the insertion holes 130a and 130b in the arrow P direction (hereinafter referred to as the insertion direction P). Each of the holes 130a and 130b is formed in an oval shape having the same size.

挿通孔130aは、図2(a)に示すように、長手フランジ部121aの上面121aaから下面121abへ貫通し、挿通孔130bは、長手フランジ部121bの上面121baから下面121bbへ貫通している。
挿通孔130aは、長手フランジ部121aの長手方向に沿って延びるように形成されており、挿通孔130bは、長手フランジ部121bの短手方向に沿って延びるように形成されている。
挿通孔130aと挿通孔130bとは、挿通孔130aの中心о1を通る中心軸x1と、挿通孔130bの中心о2を通る中心軸x2とが一致し、かつ挿通孔130aと挿通孔130bとの一部が重なり合うように配置される。すなわち、挿通孔130aと挿通孔130bとは、長手フランジ部121aの下側の所定の位置に長手フランジ部121bを配置すると、互いに挿通方向Pに沿った中心軸x1,x2を中心に90度回転した位置関係となるように形成されている。
さらに、図2(b)に示すように、挿通孔130aの中心軸x1と挿通孔130bの中心軸x2とを一致させて長手フランジ部121aの下側の所定の位置に長手フランジ部121bを配置すると、挿通方向Pから見た際に、挿通孔130aと挿通孔130bの一部が重なり合い、挿通方向Pの上側aから下側bへ貫通する貫通部分150が形成される。
As shown in FIG. 2A, the insertion hole 130a penetrates from the upper surface 121aa of the longitudinal flange portion 121a to the lower surface 121ab, and the insertion hole 130b penetrates from the upper surface 121ba of the longitudinal flange portion 121b to the lower surface 121bb.
The insertion hole 130a is formed so as to extend along the longitudinal direction of the longitudinal flange portion 121a, and the insertion hole 130b is formed so as to extend along the lateral direction of the longitudinal flange portion 121b.
The insertion hole 130a and the insertion hole 130b are such that the central axis x1 passing through the center o1 of the insertion hole 130a and the central axis x2 passing through the center o2 of the insertion hole 130b are coincident with each other, and the insertion hole 130a and the insertion hole 130b are The parts are arranged so that they overlap. That is, when the long-side flange portion 121b is arranged at a predetermined position below the long-side flange portion 121a, the through-hole 130a and the through-hole 130b rotate 90 degrees about the central axes x1 and x2 along the insertion direction P with respect to each other. It is formed so as to have a positional relationship.
Further, as shown in FIG. 2B, the longitudinal flange portion 121b is arranged at a predetermined position below the longitudinal flange portion 121a by aligning the central axis x1 of the insertion hole 130a with the central axis x2 of the insertion hole 130b. Then, when viewed from the insertion direction P, a part of the insertion hole 130a and the insertion hole 130b overlap each other to form a penetrating portion 150 penetrating from the upper side a to the lower side b in the insertion direction P.

図1に示すように、短手フランジ部122は、例えば、プレート面部110に溶接によって接合できる鋼板から形成されている。短手フランジ部122は、プレート面部110の短手側の2つの縁部に溶接等によって接合され、プレート面部110の主面に対して立設されている。各短手フランジ部122の長手方向両端部は、それぞれ長手フランジ部121の端部に溶接等によって接合されている。各短手フランジ部122には、その長手方向に沿って、所定の間隔をあけて複数の挿通孔140が形成されている。挿通孔140には、周方向に隣接するライナープレート100同士を互いに連結する連結具が挿通される。挿通孔140は、短手フランジ部122の長手方向に沿って所定の間隔をあけて複数形成されている。 As shown in FIG. 1, the short flange portion 122 is formed of, for example, a steel plate that can be joined to the plate surface portion 110 by welding. The short side flange portion 122 is joined to the two short side edges of the plate surface portion 110 by welding or the like, and is erected on the main surface of the plate surface portion 110. Both longitudinal ends of each short flange 122 are joined to the ends of the longitudinal flange 121 by welding or the like. A plurality of insertion holes 140 are formed in each of the short side flange portions 122 along the longitudinal direction thereof at predetermined intervals. A connector for connecting the liner plates 100 adjacent to each other in the circumferential direction to each other is inserted into the insertion hole 140. A plurality of insertion holes 140 are formed along the longitudinal direction of the short side flange portion 122 at predetermined intervals.

このように、一つのライナープレート100は、一つのプレート面部110と、二つの長手フランジ部121(121a,121b)と、二つの短手フランジ部122と、を有する。高さ方向及び周方向に隣接するライナープレート100同士は、それぞれの長手フランジ部121及び短手フランジ部122同士の主面方向が互いに平行となるように配置されている。
隣接するライナープレート100は、互いの短手フランジ部122が立坑の延在方向(軸線方向)に連続するのではなく、ライナープレート100の長手方向の長さの半分程度、立坑の周方向にずらして千鳥状に配置されている。
Thus, one liner plate 100 has one plate surface part 110, two long side flange parts 121 (121a, 121b), and two short side flange parts 122. The liner plates 100 adjacent to each other in the height direction and the circumferential direction are arranged such that the long side flange portions 121 and the short side flange portions 122 have main surface directions parallel to each other.
Adjacent liner plates 100 are offset from each other in the circumferential direction of the shaft by about half the length of the liner plate 100 in the longitudinal direction, rather than the short flanges 122 of the adjacent liner plates 100 being continuous in the direction of extension of the shaft (axial direction). Are arranged in a staggered pattern.

<連結装置>
次いで、図3及び図4を参照して、重ねられたライナープレート100を互いに連結する連結装置1について説明する。図3(a)は、連結装置1を上側から見た斜視図であり、図3(b)は、連結装置1を下側から見た斜視図である。図4(a)は、連結装置1の側面図であり、図4(b)は、連結装置1の正面図である。
土留の高さ方向(軸線方向)に隣接するライナープレート100同士は、連結装置1によって互いに連結されている。隣接するライナープレート100同士は、長手フランジ部121aの挿通孔130aに連結装置1を挿通して90度回転し、その後、長手フランジ部121bの挿通孔130bに連結装置1を挿通して90度回転することにより連結される。
また、長手フランジ部121aと長手フランジ部121bのそれぞれの挿通孔130a,130bは、中心軸x1,x2が一致し、かつ一部が重なり合うように重ねられており、この挿通孔130a,130bに連結装置1が挿通される。
<Coupling device>
Next, with reference to FIG. 3 and FIG. 4, the connecting device 1 for connecting the liner plates 100 that are stacked to each other will be described. 3A is a perspective view of the coupling device 1 viewed from the upper side, and FIG. 3B is a perspective view of the coupling device 1 viewed from the lower side. FIG. 4A is a side view of the coupling device 1, and FIG. 4B is a front view of the coupling device 1.
The liner plates 100 adjacent to each other in the height direction (axial direction) of the soil retention are connected to each other by the connecting device 1. The liner plates 100 adjacent to each other are inserted through the insertion hole 130a of the longitudinal flange portion 121a and rotated 90 degrees by inserting the connecting device 1 into the insertion hole 130b of the longitudinal flange portion 121b. It is connected by doing.
Further, the insertion holes 130a and 130b of the longitudinal flange portion 121a and the longitudinal flange portion 121b are overlapped so that the central axes x1 and x2 coincide with each other and a part thereof overlaps, and are connected to the insertion holes 130a and 130b. The device 1 is inserted.

図3に示すように、連結装置1は、ライナープレート100の連結に際して十分な強度を発揮できる材料、例えば、鋼材等から形成されている。連結装置1は、高さ方向(上下)に重ねられたライナープレート100の長手フランジ部121a,121bを互いに連結する。
連結装置1は、規制部12と、挿通部13と、連結部14と、操作部15とを備えている。
As shown in FIG. 3, the connecting device 1 is formed of a material, such as a steel material, which can exhibit sufficient strength when connecting the liner plates 100. The connecting device 1 connects the longitudinal flange portions 121a and 121b of the liner plate 100 that are stacked in the height direction (up and down) to each other.
The coupling device 1 includes a regulation portion 12, an insertion portion 13, a coupling portion 14, and an operation portion 15.

(規制部)
図3に示すように、規制部12は、連結されるライナープレート100の長手フランジ部121aに当接することで、挿通孔130a,130bへの挿通が規制されるように形成されている。図4に示すように、規制部12は、挿通部13の挿通孔130a,130bへの挿通方向Pに沿って、挿通部13から長手フランジ部121aと長手フランジ部121bとを重ね合わせた厚さE以上の間隔をあけて設けられている。
規制部12は、二つの長円形状の部材を互いの長手方向中央部で直交させた略プロペラ状に一体に形成されている。規制部12の上面12aには操作部15が設けられており、規制部12の下面12bには連結部14が設けられている。
規制部12は、本体部21と、本体部21から外方に向けて延出した4つの延出部22,23,24,25とを有している。
本体部21は、連結装置1により長手フランジ部121a,121b同士を連結する際に、二つの挿通孔130a,130bが重なり合う領域(貫通部分)150に対向する位置に配置される。
(Regulatory Department)
As shown in FIG. 3, the restricting portion 12 is formed so as to restrict insertion into the insertion holes 130a and 130b by contacting the longitudinal flange 121a of the liner plate 100 to be connected. As shown in FIG. 4, the regulation portion 12 has a thickness obtained by overlapping the longitudinal flange portion 121a and the longitudinal flange portion 121b from the insertion portion 13 along the insertion direction P of the insertion portion 13 into the insertion holes 130a and 130b. It is provided with a space of E or more.
The restriction portion 12 is integrally formed in a substantially propeller shape in which two oblong members are orthogonal to each other in the longitudinal central portions thereof. An operating portion 15 is provided on the upper surface 12a of the regulating portion 12, and a connecting portion 14 is provided on the lower surface 12b of the regulating portion 12.
The restricting portion 12 has a main body portion 21 and four extending portions 22, 23, 24, 25 extending outward from the main body portion 21.
The main body portion 21 is arranged at a position facing a region (penetrating portion) 150 where the two insertion holes 130a and 130b overlap each other when the longitudinal flange portions 121a and 121b are coupled to each other by the coupling device 1.

4つの延出部22〜25のうち、第1の延出部22と第2の延出部23は、連結装置1により長手フランジ部121a,121b同士を連結すると、長手フランジ部121aの上面121aa側に接触可能に形成されている。具体的には、図4(a)に示すように、第1の延出部22の先端22aから第2の延出部23の先端23aまでの長さFは、挿通孔130a,130bの幅方向の長さA(図2(a)参照)より大きく形成されている。
4つの延出部22〜25のうち、第3の延出部24と第4の延出部25は、連結装置1により長手フランジ部121a,121b同士を連結すると、挿通孔130aに対向する位置に配置される。図4(b)に示すように、第3の延出部24の先端24aから第4の延出部25の先端25aまでの長さGは、第1の延出部22の先端22aから第2の延出部23の先端23aまでの長さFと同一の長さであり、挿通孔130a,130bの長手方向の長さB(図2(a)参照)より若干小さく形成されている。
したがって、規制部12は、連結装置1を90度回転させた場合に、4つの延出部22〜25のうち、いずれか2つの延出部22,23(又は24,25)が長手フランジ部121aの上面121aaに接触するように形成されている。すなわち、規制部12は、挿通孔130a,130bを貫通することはなく、連結装置1は、規制部12によってライナープレート100に係止される。
Of the four extending portions 22 to 25, the first extending portion 22 and the second extending portion 23 connect the long flange portions 121 a and 121 b to each other by the connecting device 1, and the upper surface 121 aa of the long flange portion 121 a. It is formed so that it can contact the side. Specifically, as shown in FIG. 4A, the length F from the tip 22a of the first extending portion 22 to the tip 23a of the second extending portion 23 is the width of the insertion holes 130a and 130b. It is formed to be longer than the length A in the direction (see FIG. 2A).
Of the four extending portions 22 to 25, the third extending portion 24 and the fourth extending portion 25 are positions facing the insertion hole 130a when the longitudinal flange portions 121a and 121b are connected by the connecting device 1. Is located in. As shown in FIG. 4B, the length G from the tip end 24 a of the third extending portion 24 to the tip end 25 a of the fourth extending portion 25 is equal to the length G from the tip end 22 a of the first extending portion 22. The length is the same as the length F to the tip 23a of the second extending portion 23, and is slightly smaller than the length B in the longitudinal direction of the insertion holes 130a and 130b (see FIG. 2A).
Therefore, when the coupling device 1 is rotated 90 degrees, the restriction portion 12 has the two longitudinally extending portions 22 and 23 (or 24 and 25) out of the four extending portions 22 to 25. It is formed so as to contact the upper surface 121aa of the 121a. That is, the restricting portion 12 does not penetrate the insertion holes 130 a and 130 b, and the connecting device 1 is locked to the liner plate 100 by the restricting portion 12.

(挿通部)
図3及び図4に示すように、挿通部13は、各挿通孔130a,130bへ挿通自在に形成されている。より具体的には、挿通部13は、長円状に形成されており、挿通孔130a,130bに対して相補的な形状とされている。挿通部13の上面13a側には連結部14が設けられている。
具体的には、図4(b)に示すように、挿通部13の先端32aから挿通部13の先端32bまでの長さHは、挿通孔130a,130bの長手方向の長さB(図2(a)参照)より若干小さく形成されている。
(Insertion part)
As shown in FIGS. 3 and 4, the insertion portion 13 is formed so as to be inserted into the insertion holes 130a and 130b. More specifically, the insertion portion 13 is formed in an oval shape and has a shape complementary to the insertion holes 130a and 130b. A connecting portion 14 is provided on the upper surface 13 a side of the insertion portion 13.
Specifically, as shown in FIG. 4B, the length H from the tip 32a of the insertion portion 13 to the tip 32b of the insertion portion 13 is the length B in the longitudinal direction of the insertion holes 130a and 130b (see FIG. 2). (See (a)).

挿通部13は、長手フランジ部121a(一の連結対象物)の挿通孔130aに挿通された第1の状態(図5(b)参照)から挿通方向Pを軸として90度回転させた第2の状態(図5(c)参照)において、長手フランジ部121aの挿通孔130aへの挿通が規制される。
挿通部13は、第2の状態(図5(c)参照)で長手フランジ部121b(他の連結対象物)の孔130bに挿通自在で、長手フランジ部121bの挿通孔130bに挿通された第2の状態(図6(b)参照)から挿通方向Pを軸として90度回転させた第3の状態(図6(c)参照)において、長手フランジ部121bの挿通孔130bへの挿通が規制されるように形成されている。
The insertion portion 13 is rotated by 90 degrees about the insertion direction P as an axis from the first state (see FIG. 5B) inserted in the insertion hole 130a of the longitudinal flange portion 121a (one connection target object). In this state (see FIG. 5C), the insertion of the longitudinal flange portion 121a into the insertion hole 130a is restricted.
The insertion portion 13 is insertable into the hole 130b of the longitudinal flange portion 121b (another object to be connected) in the second state (see FIG. 5C) and is inserted into the insertion hole 130b of the longitudinal flange portion 121b. In the third state (see FIG. 6C) rotated by 90 degrees about the insertion direction P from the state 2 (see FIG. 6B), the insertion of the longitudinal flange portion 121b into the insertion hole 130b is restricted. Is formed.

挿通部13は、長手フランジ部121a,121b同士を連結すると、長手フランジ部121bの下面121bb側に挿通部13の上面13aが接触可能に形成されている。長手フランジ部121bの下面121bb側に挿通部13の上面13aが接触可能となるように、挿通部13の先端32aから挿通部13の先端32bまでの長さHは、挿通孔130a,130bの幅方向の長さA(図2(a)参照)より大きく形成されている。
なお、挿通部13の先端32aから挿通部13の先端32bまでの長さHは、第1の延出部22の先端22aから第2の延出部23の先端23aまでの長さF、及び、第3の延出部24の先端24aから第4の延出部25の先端25aまでの長さGと同一の長さである。
The insertion portion 13 is formed so that the upper surface 13a of the insertion portion 13 can come into contact with the lower surface 121bb side of the longitudinal flange portion 121b when the longitudinal flange portions 121a and 121b are connected to each other. The length H from the tip 32a of the insertion portion 13 to the tip 32b of the insertion portion 13 is determined by the width of the insertion holes 130a and 130b so that the upper surface 13a of the insertion portion 13 can come into contact with the lower surface 121bb of the longitudinal flange portion 121b. It is formed to be longer than the length A in the direction (see FIG. 2A).
The length H from the tip 32a of the insertion part 13 to the tip 32b of the insertion part 13 is the length F from the tip 22a of the first extension part 22 to the tip 23a of the second extension part 23, and The length G is the same as the length G from the tip 24a of the third extension 24 to the tip 25a of the fourth extension 25.

(連結部)
図4に示すように、連結部14は、規制部12と挿通部13とを連結している。
連結部14の上面14a側(一端側)は、規制部12の下面12bに連結されており、連結部14の下面14b側(他端側)は、挿通部13の上面13aに連結されている。具体的には、連結部14は、四角柱状に形成されており、上面14a側(一端側)が規制部12の本体部21の中心に連結され、下面14b側(他端側)が挿通部13の長手方向中央部分と連結されている。連結部14は、その軸線が連結装置1の回転軸と同軸上に位置している。
連結部14は、挿通孔130a,130bに挿通自在で、かつ、両挿通孔130a,130bによって形成される貫通部分150内で回転自在となる大きさに形成されている。
(Connecting part)
As shown in FIG. 4, the connecting portion 14 connects the regulating portion 12 and the insertion portion 13.
The upper surface 14a side (one end side) of the connecting portion 14 is connected to the lower surface 12b of the restriction portion 12, and the lower surface 14b side (other end side) of the connecting portion 14 is connected to the upper surface 13a of the insertion portion 13. .. Specifically, the connecting portion 14 is formed in a quadrangular prism shape, the upper surface 14a side (one end side) is connected to the center of the main body portion 21 of the regulating portion 12, and the lower surface 14b side (other end side) is the insertion portion. It is connected to the central portion of the longitudinal direction 13. The axis of the connecting portion 14 is located coaxially with the rotation axis of the connecting device 1.
The connecting portion 14 is sized to be inserted into the insertion holes 130a and 130b and rotatable within the penetrating portion 150 formed by the insertion holes 130a and 130b.

具体的には、図4(b)に示すように、第1の延出部22の先端22a側に面する連結部14の側面41aと、第2の延出部23の先端23a側に面する連結部14の側面41bとの間の長さIは、挿通孔130a,130bの幅方向の長さA(図2(a)参照)より小さく、挿通孔130a,130bの長手方向の長さB(図2(a)参照)より小さく形成されている。
また、第3の延出部24の先端24a側に面する側面41cと、第4の延出部25の先端25a側に面する側面41dとの間の長さJは、貫通部分150の縦の長さC(図2(b)参照)及び横の長さD(図2(b)参照)より小さく形成されている。
また、連結部14の挿通方向Pに沿う高さ方向の長さKは、重ね合わせた長手フランジ部121a,121bの挿通方向Pに沿う厚さ方向の長さE(図2(b)参照)より若干大きく形成されている。
Specifically, as shown in FIG. 4B, the side surface 41 a of the connecting portion 14 facing the tip 22 a side of the first extension portion 22 and the side surface 41 a of the second extension portion 23 on the tip end 23 a side. The length I between the connecting portion 14 and the side surface 41b is smaller than the width A of the insertion holes 130a and 130b in the width direction (see FIG. 2A), and the length I of the insertion holes 130a and 130b in the longitudinal direction. It is formed to be smaller than B (see FIG. 2A).
In addition, the length J between the side surface 41 c of the third extending portion 24 facing the tip end 24 a side and the side surface 41 d of the fourth extending portion 25 facing the tip end 25 a side is the longitudinal length of the penetrating portion 150. Is smaller than the length C (see FIG. 2B) and the lateral length D (see FIG. 2B).
Further, the length K in the height direction along the insertion direction P of the connecting portion 14 is the length E in the thickness direction along the insertion direction P of the overlapped longitudinal flange portions 121a and 121b (see FIG. 2B). It is formed slightly larger.

(操作部)
図3及び図4に示すように、操作部15は、挿通部13を挿通方向Pに沿った軸線回りに回転させる操作を行うものである。操作部15は、四角柱状に形成されており、規制部12の本体部21に連結されている。
操作部15の上面15aは、挿通方向P(図2(a)参照)の上流側に配置されており、挿通方向Pの下流側に配置された操作部15の下面15bは、規制部12の本体部21に連結されている。
操作部15の上面15aと下面15bとの間の側面51a〜51dのうち、側面51aは第1の延出部22の先端22a側に面し、側面51bは第2の延出部23の先端23a側に面し、側面51cは第3の延出部24の先端24a側に面し、側面51dは第4の延出部25の先端25a側に面している。
図4(a),(b)に示すように、側面51a及び側面51bの挿通方向Pに直交する幅方向Lの長さは、側面51c及び側面51dの挿通方向Pに直交する幅方向Mの長さより大きく形成されている。
操作部15は、治具を嵌合させ、その治具を回転させることにより連結装置1を回転させることができる。
(Operation part)
As shown in FIGS. 3 and 4, the operation portion 15 performs an operation of rotating the insertion portion 13 around the axis line along the insertion direction P. The operation portion 15 is formed in a rectangular column shape and is connected to the main body portion 21 of the regulation portion 12.
The upper surface 15a of the operation portion 15 is arranged on the upstream side in the insertion direction P (see FIG. 2A), and the lower surface 15b of the operation portion 15 arranged on the downstream side in the insertion direction P is of the regulation portion 12. It is connected to the main body portion 21.
Of the side surfaces 51 a to 51 d between the upper surface 15 a and the lower surface 15 b of the operation portion 15, the side surface 51 a faces the tip 22 a side of the first extension portion 22 and the side surface 51 b is the tip of the second extension portion 23. 23a, the side surface 51c faces the tip 24a side of the third extending portion 24, and the side surface 51d faces the tip 25a side of the fourth extending portion 25.
As shown in FIGS. 4A and 4B, the length of the side surface 51a and the side surface 51b in the width direction L orthogonal to the insertion direction P is the width direction M of the side surface 51c and the side surface 51d orthogonal to the insertion direction P. It is formed larger than the length.
The operation unit 15 can rotate the coupling device 1 by fitting a jig and rotating the jig.

<ライナープレートの連結方法>
次に、図5〜図7を参照して、高さ方向に隣り合うライナープレート100同士を連結する方法について説明する。図5(a)は、ライナープレート100の挿通孔130aに連結装置1を挿通させる前の状態を示す斜視図であり、図5(b)はライナープレート100の挿通孔130aに連結装置1の挿通部13を挿通させた状態を示す斜視図であり、図5(c)はライナープレート100の挿通孔130aに連結装置1の挿通部13を挿通させて連結装置1を90度回転させた状態を示す斜視図である。図6(a)はライナープレート100の挿通孔130a及び挿通孔130bに連結装置1の挿通部13を挿通させる前の状態を示す斜視図であり、図6(b)はライナープレート100の挿通孔130a及び挿通孔130bに連結装置1の挿通部13を挿通させた状態を示す斜視図であり、図6(c)はライナープレート100の挿通孔130a及び挿通孔130bに連結装置1の挿通部13を挿通させて連結装置1を90度回転させた状態を示す斜視図である。図7(a)はライナープレート100の挿通孔130aに連結装置1の挿通部13を挿通させた状態を下側から示す斜視図であり、図7(b)はライナープレート100の挿通孔130a及び挿通孔130bに連結装置1の挿通部13を挿通させた状態を下側から示す斜視図であり、図7(c)はライナープレート100の挿通孔130a及び挿通孔130bに連結装置1の挿通部13を挿通させて連結装置1を90度回転させた状態を下側から示す斜視図である。
<How to connect liner plates>
Next, a method of connecting the liner plates 100 adjacent to each other in the height direction will be described with reference to FIGS. 5A is a perspective view showing a state before the connecting device 1 is inserted through the insertion hole 130a of the liner plate 100, and FIG. 5B is a perspective view showing that the connecting device 1 is inserted through the insertion hole 130a of the liner plate 100. FIG. 5C is a perspective view showing a state in which the portion 13 is inserted, and FIG. 5C shows a state in which the insertion portion 13 of the connection device 1 is inserted into the insertion hole 130 a of the liner plate 100 and the connection device 1 is rotated 90 degrees. It is a perspective view shown. 6A is a perspective view showing a state before the insertion portion 13 of the connecting device 1 is inserted into the insertion holes 130a and 130b of the liner plate 100, and FIG. 6B is the insertion hole of the liner plate 100. FIG. 6C is a perspective view showing a state where the insertion portion 13 of the coupling device 1 is inserted through the insertion hole 130 a and the insertion hole 130 b, and FIG. 6C is a perspective view of the insertion portion 13 of the connection device 1 inserted through the insertion holes 130 a and 130 b of the liner plate 100. FIG. 6 is a perspective view showing a state in which the connector 1 is inserted and the connecting device 1 is rotated 90 degrees. 7A is a perspective view showing a state in which the insertion portion 13 of the connecting device 1 is inserted into the insertion hole 130a of the liner plate 100 from below, and FIG. 7B is a perspective view of the insertion hole 130a of the liner plate 100 and FIG. 7 is a perspective view showing a state in which the insertion portion 13 of the coupling device 1 is inserted through the insertion hole 130b, and FIG. 7C is a perspective view showing the insertion portion of the coupling device 1 in the insertion hole 130a and the insertion hole 130b of the liner plate 100. It is a perspective view which shows the state which inserted 13 and rotated the connection device 1 90 degrees from a lower side.

例えば、立坑の内壁面に土留を構築する場合、立坑を掘り下げるにつれて新たに連結するライナープレート100を下側から既設のライナープレート100に連結することによりライナープレート100を高さ方向に連結していく。
ライナープレート100を連結する場合、図5(a)に示すように、既設のライナープレート100の長手フランジ部121aの挿通孔130aに対して、挿通方向Pに沿って長手フランジ部121aの上方から挿通部13を挿通孔130aに挿通する。
For example, in the case of constructing a soil retaining on the inner wall surface of the shaft, the liner plate 100 to be newly connected is connected from the lower side to the existing liner plate 100 as the shaft is dug down to connect the liner plate 100 in the height direction. ..
When connecting the liner plates 100, as shown in FIG. 5A, the liner plate 100 is inserted from above the longitudinal flange portion 121a along the insertion direction P into the insertion hole 130a of the longitudinal flange portion 121a of the existing liner plate 100. The part 13 is inserted into the insertion hole 130a.

挿通孔130aへの挿通部13の挿通は、図5(b)に示すように、挿通部13の側面33a,33bが長手フランジ部121aの挿通孔130aの長手方向に沿った縁部に面するように挿通する。挿通部13が挿通孔130aを通過すると、挿通部13に連続する連結部14も挿通孔130aに挿通される(図5(b)、図7(a)参照)。また、規制部12の第1の延出部22と第2の延出部23は、長手フランジ部121aの上面121aa側に接触する。
規制部12が長手フランジ部121aの上面121aa側に接触して連結装置1の挿通が規制された後、操作部15に治具を嵌合させて連結装置1を矢印R方向に90度回転させる(図5(b)参照)。なお、図5〜図7においては、挿通部13の側面33bがプレート面部110側に面するように挿通部13を挿通する場合で説明しているが、挿通部13の側面33aがプレート面部110側に面するように挿通部13を挿通してもよい。
For insertion of the insertion portion 13 into the insertion hole 130a, as shown in FIG. 5B, the side surfaces 33a and 33b of the insertion portion 13 face the edge of the longitudinal flange portion 121a along the longitudinal direction of the insertion hole 130a. To insert. When the insertion portion 13 passes through the insertion hole 130a, the connecting portion 14 continuous with the insertion portion 13 is also inserted into the insertion hole 130a (see FIGS. 5B and 7A). Moreover, the 1st extension part 22 and the 2nd extension part 23 of the regulation part 12 contact the upper surface 121aa side of the longitudinal flange part 121a.
After the restriction portion 12 contacts the upper surface 121aa side of the longitudinal flange portion 121a to restrict the insertion of the connecting device 1, a jig is fitted to the operating portion 15 to rotate the connecting device 1 in the direction of arrow R by 90 degrees. (See FIG. 5(b)). 5 to 7, the insertion portion 13 is inserted so that the side surface 33b of the insertion portion 13 faces the plate surface portion 110 side. However, the side surface 33a of the insertion portion 13 has the plate surface portion 110. The insertion portion 13 may be inserted so as to face the side.

連結装置1を矢印R方向に90度回転させると、図5(c)に示すように、挿通部13の側面33a,33bが長手フランジ部121aの挿通孔130aの短手方向に沿った縁部に面する。また、連結部14は挿通孔130a内で90度回転され、規制部12の第3の延出部24と第4の延出部25は、長手フランジ部121aの上面121aa側に接触する。 When the connecting device 1 is rotated 90 degrees in the direction of the arrow R, the side surfaces 33a and 33b of the insertion portion 13 are edge portions along the short side direction of the insertion hole 130a of the long flange portion 121a as shown in FIG. 5C. Face. In addition, the connecting portion 14 is rotated 90 degrees in the insertion hole 130a, and the third extending portion 24 and the fourth extending portion 25 of the regulating portion 12 contact the upper surface 121aa side of the longitudinal flange portion 121a.

次に、新たに連結するライナープレート100を下側から既設のライナープレート100に連結するために、新たに連結するライナープレート100をジャッキ等により吊り上げて既設のライナープレート100の下側から接近させる。具体的には、図6(a)に示すように、長手フランジ部121aの下側から新たなライナープレート100の長手フランジ部121bを近接させ、挿通孔130aの中心о1を通る中心軸x1と、挿通孔130bの中心о2を通る中心軸x2とが一致するように接近させる(図2(b)参照)。 Next, in order to connect the liner plate 100 to be newly connected to the existing liner plate 100 from the lower side, the liner plate 100 to be newly connected is lifted by a jack or the like and brought close to the lower side of the existing liner plate 100. Specifically, as shown in FIG. 6A, the longitudinal flange 121b of the new liner plate 100 is brought closer to the lower side of the longitudinal flange 121a, and the central axis x1 passing through the center o1 of the insertion hole 130a, The insertion holes 130b are brought close to each other so that the central axis x2 passing through the center 2 of the insertion hole 130b coincides with each other (see FIG. 2B).

長手フランジ部121bを近接させた後、図6(b)に示すように、挿通部13を挿通孔130bに挿通する。このとき、連結装置1は90度回転された状態であり、挿通孔130bは、挿通孔130aに対して90度回転した位置関係となるように形成されているため、長手フランジ部121bを近接させると、挿通部13は挿通孔130bに挿通される(図7(b)参照)。また、連結部14は、貫通部分150を挿通する(図2(b)参照)。 After the longitudinal flange portions 121b are brought close to each other, the insertion portion 13 is inserted into the insertion hole 130b as shown in FIG. 6(b). At this time, the connecting device 1 is in a state of being rotated by 90 degrees, and the insertion hole 130b is formed so as to have a positional relationship of being rotated by 90 degrees with respect to the insertion hole 130a, so that the longitudinal flange portion 121b is brought close to it. Then, the insertion portion 13 is inserted into the insertion hole 130b (see FIG. 7B). Further, the connecting portion 14 is inserted through the penetrating portion 150 (see FIG. 2B).

そして、連結装置1を矢印R方向に90度回転させると、図6(c)に示すように、挿通部13の側面33a,33bが長手フランジ部121aの挿通孔130aの長手方向に沿った縁部に面し、長手フランジ部121bの下面121bb側に挿通部13の上面13aが接触する(図7(c)参照)。また、連結部14は、貫通部分150内で90度回転し、規制部12の第1の延出部22と第2の延出部23は、長手フランジ部121aの上面121aa側に接触する。その後、操作部15から治具を外す。
これにより、上下のライナープレート100における長手フランジ部121aと長手フランジ部121bは、規制部12と挿通部13とによって挟持された状態となり、ライナープレート100同士が互いに連結される。
Then, when the connecting device 1 is rotated 90 degrees in the direction of arrow R, the side surfaces 33a and 33b of the insertion portion 13 are edges along the longitudinal direction of the insertion hole 130a of the longitudinal flange portion 121a as shown in FIG. 6C. The upper surface 13a of the insertion portion 13 contacts the lower surface 121bb side of the longitudinal flange 121b (see FIG. 7C). Further, the connecting portion 14 rotates 90 degrees in the penetrating portion 150, and the first extending portion 22 and the second extending portion 23 of the regulating portion 12 contact the upper surface 121aa side of the longitudinal flange portion 121a. After that, the jig is removed from the operation unit 15.
As a result, the longitudinal flange portions 121a and 121b of the upper and lower liner plates 100 are sandwiched by the restriction portion 12 and the insertion portion 13, and the liner plates 100 are connected to each other.

以上のような連結装置1により、従来のボルト及びナットを使用したライナープレートの連結技術に比べて、ライナープレート100同士を極めて簡単にかつ迅速に連結することができるようになる。つまり、(1)上側のライナープレート100の挿通孔130aに挿通部13を挿通して90度回転させ、(2)下側のライナープレート100の挿通孔130bに挿通部13を挿通して90度回転させる、だけで簡単にライナープレート100同士を連結することができる。
これにより、立坑内の狭い作業空間において、ライナープレート100を連結する作業者の負担を大幅に軽減することができ、施工効率が向上し、作業時間が短縮される。
The connecting device 1 as described above makes it possible to connect the liner plates 100 to each other very easily and quickly, as compared with the conventional liner plate connecting technique using bolts and nuts. That is, (1) the insertion portion 13 is inserted into the insertion hole 130a of the upper liner plate 100 and rotated 90 degrees, and (2) the insertion portion 13 is inserted into the insertion hole 130b of the lower liner plate 100 and rotated 90 degrees. The liner plates 100 can be easily connected to each other simply by rotating them.
As a result, it is possible to significantly reduce the burden on the operator who connects the liner plate 100 in a narrow working space in the vertical shaft, improve the construction efficiency, and shorten the working time.

また、従来のボルト及びナットを使用したライナープレートの連結構造では、ライナープレートにそれぞれ形成された挿通孔同士は、上下方向に重ねると整合する形状に形成されているため、ライナープレート同士の位置がずれると挿通孔が小さくなり、挿通孔にボルトを挿通しにくくなる。しかしながら、上記のライナープレート100は、ライナープレート100の長手フランジ部121a,121bに形成された挿通孔130aと挿通孔130bとは、挿通孔130aの中心о1を通る中心軸x1と、挿通孔130bの中心о2を通る中心軸x2とが一致し、かつ挿通孔130aと挿通孔130bとの一部が重なり合うように配置されている。このため、ライナープレート100同士の位置がずれることにより挿通孔が小さくなることを防止することができる。 Further, in the conventional connection structure of the liner plates using the bolts and nuts, the insertion holes formed in the liner plates are formed in a shape that aligns with each other in the vertical direction. If it shifts, the insertion hole becomes smaller and it becomes difficult to insert the bolt into the insertion hole. However, in the liner plate 100 described above, the insertion hole 130a and the insertion hole 130b formed in the long side flange portions 121a and 121b of the liner plate 100 have the central axis x1 passing through the center o1 of the insertion hole 130a and the insertion hole 130b. The center axis x2 passing through the center 2 is aligned with each other, and the insertion hole 130a and the insertion hole 130b are partially overlapped with each other. For this reason, it is possible to prevent the insertion holes from becoming smaller due to the positional deviation between the liner plates 100.

<その他>
以上、本発明の好適な実施の形態について説明したが、本発明は上記の実施の形態に限定されるものではなく、本発明の概念及び特許請求の範囲に含まれるあらゆる態様を含む。また、上述した課題及び効果の少なくとも一部を奏するように、各構成を適宜選択的に組み合わせてもよい。また、例えば、上記実施の形態における各構成要素の形状、材料、配置、サイズ等は、本発明の具体的使用態様によって適宜変更され得る。
例えば、挿通孔130a,130bの形状及び挿通部13の形状は、長円形状であったが楕円形状や多角形状であってもよい。すなわち、挿通孔130a,130bの形状及び挿通部13の形状は、三角形、四角形、正方形、五角形等、正円以外の形状であればよい。
<Other>
Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and includes all aspects included in the concept of the present invention and the scope of the claims. Further, the respective configurations may be appropriately and selectively combined so as to achieve at least a part of the above-mentioned problems and effects. Further, for example, the shape, material, arrangement, size, etc. of each constituent element in the above-described embodiment can be appropriately changed depending on the specific usage mode of the present invention.
For example, although the shape of the insertion holes 130a and 130b and the shape of the insertion portion 13 are elliptical, they may be elliptical or polygonal. That is, the shape of the insertion holes 130a and 130b and the shape of the insertion portion 13 may be a shape other than a perfect circle, such as a triangle, a quadrangle, a square, or a pentagon.

また、規制部12の形状は、連結装置1を2回回転させた際に、長手フランジ部121aの上面121aa側に接触する形状であれば他の形状でもよい。
また、操作部15に治具を嵌合させて連結装置1を回転させている場合に限らず、作業者が手で回転させてもよい。
また、連結装置1を矢印R方向、すなわち時計回りに回転させているが、反時計回りに回転させもよい。
また、操作部15により連結装置1を回転させる際の回転角度も任意であって、挿通孔130a,130b、規制部12及び挿通部13の形状に応じて変更可能である。
Further, the shape of the restricting portion 12 may be any other shape as long as it makes contact with the upper surface 121aa side of the longitudinal flange portion 121a when the connecting device 1 is rotated twice.
Further, not only the case where the jig is fitted into the operation unit 15 to rotate the coupling device 1, but the worker may rotate the coupling device 1 by hand.
Further, although the coupling device 1 is rotated in the direction of arrow R, that is, clockwise, it may be rotated counterclockwise.
Further, the rotation angle when the coupling device 1 is rotated by the operation portion 15 is also arbitrary, and can be changed according to the shapes of the insertion holes 130a and 130b, the restriction portion 12, and the insertion portion 13.

また、ライナープレート100の長手フランジ部121a,121bに面する規制部12の下面12b、挿通部13の上面13aの少なくとも一方に複数の凸部を設けたり、表面を粗く形成することにより、長手フランジ部121a,121bとの摩擦力を高めて連結装置1を外れにくくし、ライナープレート100の連結を強固にすることもできる。
また、挿通部13における長手フランジ部121bとの対向面、規制部12における長手フランジ部121aとの対向面のうち、少なくとも一方に、傾斜面(傾斜部)を形成してもよい。例えば、図8(a)に示すように、挿通部13の上面に一つの傾斜面13cを形成する。傾斜面13cは、連結装置1aの回転操作方向R上流側から下流側(図8(a)における右側から左側)に向かうにつれて徐々に規制部12の下面12bから離間するように傾斜している。この場合、連結装置1aを回転させる方向はR方向に限定されるが、回転操作を容易にし、回転完了後には連結装置1aを外れにくくし、ライナープレート100の連結を強固にすることもできる。
Further, by providing a plurality of convex portions on at least one of the lower surface 12b of the regulating portion 12 facing the longitudinal flange portions 121a and 121b of the liner plate 100 and the upper surface 13a of the insertion portion 13 or by roughening the surface, the longitudinal flange portion is formed. It is also possible to increase the frictional force with the portions 121a and 121b to make it difficult for the coupling device 1 to come off, and to strengthen the coupling of the liner plate 100.
Further, an inclined surface (inclined portion) may be formed on at least one of the surface of the insertion portion 13 facing the longitudinal flange portion 121b and the surface of the regulating portion 12 facing the longitudinal flange portion 121a. For example, as shown in FIG. 8A, one inclined surface 13c is formed on the upper surface of the insertion portion 13. The inclined surface 13c is inclined so as to gradually separate from the lower surface 12b of the restriction portion 12 from the upstream side of the rotational operation direction R of the coupling device 1a toward the downstream side (from the right side to the left side in FIG. 8A). In this case, the direction in which the connecting device 1a is rotated is limited to the R direction, but the rotating operation can be facilitated, the connecting device 1a can be prevented from coming off easily after the rotation is completed, and the connection of the liner plate 100 can be strengthened.

また、図8(b)に示すように、挿通部13の上面に二つの傾斜面13d,13eを形成する。傾斜面13dは、挿通部13の幅方向の中央位置から連結装置1bの回転操作方向R1上流側から下流側(図8(b)における右側から左側)に向かうにつれて徐々に規制部12の下面12bから離間するように傾斜している。傾斜面13eは、挿通部13の幅方向の中央位置から連結装置1bの回転操作方向R2上流側から下流側(図8(b)における左側から右側)に向かうにつれて徐々に規制部12の下面12bから離間するように傾斜している。ここで、傾斜面13dと傾斜面13eは、規制部12の下面12bに最も近づいた位置において連続するように形成されている。この場合、連結装置1bは、R1方向とR2方向のいずれにも回転させることが可能であり、回転操作を容易にし、回転完了後には連結装置1bを外れにくくし、ライナープレート100の連結を強固にすることもできる。
また、連結部14は、規制部12及び挿通部13に突き合わせて互いを連結する場合に限らず、規制部12の下面12bに形成された孔及び挿通部13の上面13aに形成された孔に連結部14のそれぞれの端部を嵌め込んで連結するようにしてもよい。これにより、連結部14による規制部12と挿通部13との連結を強固にすることができ、外れにくくなる。
Further, as shown in FIG. 8B, two inclined surfaces 13d and 13e are formed on the upper surface of the insertion portion 13. The inclined surface 13d gradually extends from the center position in the width direction of the insertion portion 13 toward the downstream side (the right side to the left side in FIG. 8B) of the rotation direction R1 of the coupling device 1b from the lower side 12b of the regulating section 12. Sloped away from. The inclined surface 13e gradually extends from the center position in the width direction of the insertion portion 13 toward the downstream side (from the left side to the right side in FIG. 8B) of the rotation direction R2 of the coupling device 1b from the lower surface 12b of the restriction portion 12. Sloped away from. Here, the inclined surface 13d and the inclined surface 13e are formed so as to be continuous at the position closest to the lower surface 12b of the restriction portion 12. In this case, the coupling device 1b can be rotated in both the R1 direction and the R2 direction, facilitates the rotation operation, makes the coupling device 1b difficult to come off after the completion of the rotation, and firmly couples the liner plate 100. You can also
In addition, the connecting portion 14 is not limited to the case where the restricting portion 12 and the inserting portion 13 are butted and connected to each other. You may make it connect by inserting each end part of the connection part 14. As a result, the connection between the restriction portion 12 and the insertion portion 13 by the connection portion 14 can be strengthened, and the connection portion 14 is unlikely to come off.

1 連結装置
12 規制部
13 挿通部
14 連結部
15 操作部
21 本体部
22 第1の延出部
23 第2の延出部
24 第3の延出部
25 第4の延出部
100 ライナープレート
110 プレート面部
120 フランジ部
121 長手フランジ部
121a 長手フランジ部
121b 長手フランジ部
122 短手フランジ部
130a 挿通孔
130b 挿通孔
140 挿通孔
150 貫通部分
DESCRIPTION OF SYMBOLS 1 Connection device 12 Restriction part 13 Insertion part 14 Connection part 15 Operation part 21 Main body part 22 1st extension part 23 2nd extension part 24 3rd extension part 25 4th extension part 100 Liner plate 110 Plate surface part 120 Flange part 121 Longitudinal flange part 121a Longitudinal flange part 121b Longitudinal flange part 122 Short flange part 130a Insertion hole 130b Insertion hole 140 Insertion hole 150 Penetration part

Claims (4)

重ねられた連結対象物を連結する連結装置であって、
各連結対象物に形成された孔に挿通自在に形成された挿通部と、
前記挿通部の前記孔への挿通方向に沿って、前記挿通部から連結対象物の厚さ以上の間隔をあけて設けられ、前記孔への挿通を規制する規制部と、を備え、
前記挿通部は、前記一の連結対象物の孔に挿通された第1の状態から前記挿通方向を軸として回転させた第2の状態において前記一の連結対象物の孔への挿通が規制されるとともに、前記第2の状態で前記他の連結対象物の孔に挿通自在で、前記他の連結対象物の孔に挿通された前記第2の状態から前記挿通方向を軸として回転させた第3の状態において前記他の連結対象物の孔への挿通が規制されるように形成されていることを特徴とする連結装置。
A connection device for connecting overlapping connection objects,
An insertion portion formed so as to be freely inserted into a hole formed in each connection target,
Along the insertion direction of the insertion portion into the hole, a regulation portion that is provided at a distance equal to or greater than the thickness of the object to be connected from the insertion portion, and that regulates insertion into the hole,
The insertion part is restricted from being inserted into the hole of the one connection target object in a second state in which the insertion part is rotated about the insertion direction from the first state of being inserted into the hole of the one connection target object. In addition, it is freely insertable into the hole of the other connection target in the second state, and is rotated about the insertion direction from the second state of being inserted into the hole of the other connection target. In the state of 3, the insertion device is formed so that the insertion of the other connection target object into the hole is restricted.
前記規制部に設けられ、前記挿通部を前記挿通方向に沿った軸線回りに回転させる操作部を備えることを特徴とする請求項1に記載の連結装置。 The connection device according to claim 1, further comprising: an operation unit that is provided on the regulation unit and that rotates the insertion unit around an axis line along the insertion direction. 前記一の連結対象物の孔と前記他の連結対象物の孔は、前記挿通部の挿通方向から見た際に、一部が前記挿通方向に重なっていることを特徴とする請求項1に記載の連結装置。 The hole of the one connection object and the hole of the other connection object partially overlap with each other in the insertion direction when viewed from the insertion direction of the insertion portion. The coupling device described. 前記一の連結対象物の孔と前記他の連結対象物の孔は同じ形状であり、一方の孔は他方の孔に対して、挿通される前記挿通部の前記挿通方向を軸として回転させた状態にあることを特徴とする請求項3に記載の連結装置。 The hole of the one connection object and the hole of the other connection object have the same shape, and one hole is rotated with respect to the other hole with the insertion direction of the insertion portion being inserted as an axis. The coupling device according to claim 3, wherein the coupling device is in a state.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS571903U (en) * 1980-06-03 1982-01-07
JPH0618706U (en) * 1992-08-19 1994-03-11 加藤発条株式会社 Fastening structure of parts
JPH1037924A (en) * 1996-07-23 1998-02-13 Koizumi Sangyo Kk Tightening structure of members
WO2011001943A1 (en) * 2009-06-29 2011-01-06 株式会社ニフコ Clip and clip device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS571903U (en) * 1980-06-03 1982-01-07
JPH0618706U (en) * 1992-08-19 1994-03-11 加藤発条株式会社 Fastening structure of parts
JPH1037924A (en) * 1996-07-23 1998-02-13 Koizumi Sangyo Kk Tightening structure of members
WO2011001943A1 (en) * 2009-06-29 2011-01-06 株式会社ニフコ Clip and clip device

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